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CVE-2026-29181

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-29181

Severity

7.5

High

CVSS V3

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Summary

OpenTelemetry-Go multi-value baggage header extraction causes excessive allocations (remote dos amplification)

Description

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.

References

Affected packages

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